Applicator cap for collapsible tubes



July 13 1926, 1,592,753

J. L. BEYER APPLICATOR CAP FOR COLLAPSIBLE TUBES Filed August 15, 1922 Patented July 13, 1926.

UNITED" STATES PATENT OFFICE. Q

JACOB LAWRENCE BEYER, OI COPENHAGEN, DENMARK, ASSIGNOR TO OTTO .l' OHAN N ES BBUUN, OF COPENHAGEN, DENMARK.

APPLICA'IOR CAP FOB COLLAPSIBLE TUBES.

Application filed August 15, 1922, Serial No. 582,048, and in Denmark March 29, 1922.

The collapsible tubes hitherto known generally emit their contents in form of a sin gle string of matter which Ina-y, thereupon, by means of the fingers, a piece of cloth, a suitable brush or the like be spread over the article to which the said contents of the tube is to be applied. This way of applying such material will, however, often prove unsuitable and non-economical.

It is the object of the present invention to provide a cap for such collapsible tubes by means of which it will be possible to apply the contents of the collapsible tube in an even, thin and economical manner to any article to be treated therewith.

In the accompanying drawing a constructional form of such applicator cap for a collapsible tube is shown by way of example and described in the following specification. The cap and the upper end of the collapsible tube are shown in a longitudinal section.

In the drawing a: is the collapsible tube made of any suitable material. At its upper end the tube is contracted to a neck 6 serving as orifice through which the material contained in the tube can be emitted. This neck e is, at its extreme end provided with an annular groove 9 on its outer surface and in this groove is seated a ring it which together with a fiat or slightly vaulted member 1 forms a cap sealing the collapsible tube. Over the member Z is stretched a piece of porous textile fabric 2' the edges of which are jammed in between the rims of said member Z and of the ring h, respectively, much in the wayemployed in making cloth covered buttons.

Into the upper portion of the cap are punched a number of small holes is. However, it may, in some instances, in articular when the upper portion is of a at shape, be preferable that in place of a plurality of such small holes, there is provided only one single, larger hole In in the center of the member Z. When the collapsible tube is thereupon compressed at its rear end, its contents will emerge through the orifice and the hole or the holes in the member Z into the space between the latter and the textile fabric covering 71 where it will be spread and fill up this space, thereby stretching the fabric, and ultimately emerging through the pores of said fabric, so that it may be evenly and thinly applied to the respective article to be treated.

The constructional form shown in the drawing may, of course be modified in many ways within the scope of the invention. Any desired number ofholes is may be employed. The nature and the thickness of the fabric 5 may be varied according to the nature of the contents of the tube and the purpose to which itis to be employed. The said fabric may, moreover, be secured in any other suitable manner to the applicator cap, than the way shown in the drawing. Between the member Z and the fabric there may also be inserted cotton or the like which will hold the fabric a little away from the member Z and prevent the contents of the tube emerging in a too liquid form. The ring shaped lower portion of the cap seated in the groove 9 is held there by the said neck being expanded at its upper end a ter the ring has been seated, so that the groove receives the section of an overhanging dovetail. Also this mode of securing the ring may be modified.

In order to prevent the contents of the tube from drying or evaporating, when the tube is not being used, the textile fabric is covered with a sheet of impermeable material m, such as tin-foil and the like. The edges of this impermeable sheet would be long enough as to allow of their being jammed together with the fabric between the two portions of the cap. By such means the tube will be hermetically sealed until it is to be used, when the tin-foil covering may readily be removed with the nail of a ger.

I claim:

1. In combination with a collapsible tube, a porous sheet stretched over the orifice of the tube, a rupturable impermeable sheet superposed on said porous sheet, and means for securing said sheets in position.

2. In combination with a colla sible tube, a collar surrounding the orifice of the tube, a perforated cover having a sleeve mating With said collar, a porous sheet stretched over said cover, a rupturable impermeable sheet superposed on said porous sheet, the

edges of said sheets being retained between said sleeve and said collar, 77 V 3. In combination with a collapsible tube,

5 a collar surrounding the neck of the tube, a

perforated cover having an annular sleeve mating with said collar and a porous sheet stretched over said cover and having its edges retained between said cover and said collar. 10

The foregoing specification signed at Copenhagen this 28th day of July, 1922.

JACOB LAWRENCE BEYER. 

